Ericson 25, Sailplan

Standard Rig
                    Ounces   Sq Ft   Sq M
Main                  5.00  105.00   9.75
Jib                   5.00  122.00  ll.33
110% Lapper           5.00  140.00  13.00
150% Genoa            3.80  244.00  22.66
Spinnaker              .75  459.00  42.63
                              Feet Meters
J                            10.50   3.20
P                            25.00   7.65
E                             8.42   2.57
I                            30.50   9.30

Waterline to masthead        33'11" 10.34
Mast rake aft                 none

Tall Rig
An optimal tall rig is available for the Ericson 25. Mast and boom sections are the same as the standard rig. It is offered only on the keel version.
                              Feet Meters
J                            10.50   3.20
P                            27.50   8.38
E                             8.83   2.69
I                            33.00  10.06

Waterline to masthead        36'50" 11.10
Mast rake aft                 none

Extruded aluminum, oval shape, 6.50"/l6.5lcm X 3.25"/8.26cm X .140/3.6mm wall section.

Extruded aluminum, teardrop shape. 4"/10.16cm X 3"/7.62cm X .109/2.8mm wall section.

Both spars have grooves designed to accept 7/16"/11.1mm sail slugs.

Standing rigging
1/19 stainless. 5/32"/4.0mm diameter. As standing rigging will vary somewhat in length from boat to boat it is advisable to accurately measure existing shroud or stay when ordering a replacement.

Running Rigging
When replacing running rigging it is advisable to measure existing halyard, sheet or guy when ordering a replacement.


Under no circumstances should your rigging be set up “bar tight". For all sailing conditions the rigging should be firm with the mast vertical and in column. The headstay and backstay should be of equal tension and have l-2" (25-50 mm) of play. Upper shrouds should also have 1-2" (25-50 mm) of play while the lowers should have 2-3" (50-76 mm), with the forward lowers slightly tighter than the after lowers.

For a final tuning, sail the boat to windward in a breeze of 8-10 knots sighting up the sail slides (on the backside of the mast) to assure that it is vertical and in column. The masthead should not fall off or hook to windward. Make any turnbuckle adjustments on the leeward side, tack and recheck for straightness.

After a few tacks the mast should be straight. Secure the turnbuckles by inserting cotter keys and tape them to prevent any snags or sail chafe. Standing rigging will stretch, so the rig tune should be rechecked after the first few months of sailing.


The sailplan above contains the outlines of various sails. Here they are color-filled for better visualization:
150% Genoa
180% Genoa
Staysail (Cutter Rig)
Lightweight Genniker?
(used with Spinnaker?)

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